499731798 has 16 divisors (see below), whose sum is σ = 1000382976. Its totient is φ = 166424040.

The previous prime is 499731737. The next prime is 499731809. The reversal of 499731798 is 897137994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31138 + ... + 44373.

It is an arithmetic number, because the mean of its divisors is an integer number (62523936).

Almost surely, 2^499731798 is an apocalyptic number.

499731798 is an abundant number, since it is smaller than the sum of its proper divisors (500651178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499731798 is a wasteful number, since it uses less digits than its factorization.

499731798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76619.

The product of its digits is 3429216, while the sum is 57.

The square root of 499731798 is about 22354.6817915174. The cubic root of 499731798 is about 793.5585858897.

The spelling of 499731798 in words is "four hundred ninety-nine million, seven hundred thirty-one thousand, seven hundred ninety-eight".